S1 Publishing(Oxford)© 1999-07

World of motorcycleS
S1 Publishing(Oxford)© 1999-07
Maintenance - Engines
 Honda VT500 twin

This is just a general guide.
   If you are about to do your own maintenance, using these pages, I take no responsibility if you get things wrong!
1 Remove saddle.

Mechanic..... Northern Nick
Photos, & words by Si
2. Remove side panels
or at least try not lose them, a fix for those is on tips I think!
4. Disconnect vacuum pipe. Best done from the carb end.

Mechanic..... Northern Nick
Photos, & words by Si
5 Disconnect fuel pipe

Mechanic..... Northern Nick
Photos, & words by Si
6 Undo 12 mm Bolt from Fuel Tank.

Mechanic..... Northern Nick
Photos, & words by Si
7, Remove Fuel Tank.

Mechanic.... Northern Nick
Photos, & words by Si
8. Using a crosshead screwdriver, loosen the clamps from the rear of the air box

Mechanic..... Northern Nick
Photos, & words by Si
9. Loosen the clamps holding the air box to both carbs

Mechanic..... Northern Nick
Photos, & words by Si
10. Wriggle the air box free from the machine.

Mechanic.... Northern Nick
Photos, & words by Si
11. Using a crosshead screwdriver, loosen the clamps which hold the carbs into the inlet rubbers

Mechanic..... Northern Nick
Photos, & words by Si
12. Wriggle the carbs from their rubbers. Note you do not have to undo the cables. I usually put over a plastic bag over them to stop debris/water getting into them.

Mechanic..... Northern Nick
Photos, & words by Si
13. Remove the four spark plug caps.  and tuck them, still attached to the HT leads away from the engine (I usually put them near the coils, it stops them from getting in the way or getting damaged). The HT leads are usually numbered, but it is not easy to get them in the wrong plugs as they have different caps for right and left. The shorter two leads go to the front pot, and can't reach to fit into the rear one.

Mechanic.... Northern Nick
Photos, & words by Si
14. Using a crosshead screwdriver, undo and remove the screw holding the rev counter cable from the rocker box cover in the front pot.
 Remove the cable and place the screw back into position to stop it being getting lost.

Mechanic..... Northern Nick
Photos, & words by Si
15. remove the nuts holding on the exhaust(s) to the heads

Front pot

Rear pot
16 & the bolt holding the silencer from the foot peg carrier.
17, wriggle the exhaust(s) free.

Mechanic..... Northern Nick
Photos, & words by Si
18, Drain the coolant into a suitable container. (I usually find the lowest part of the machine and undo the main pipe connection, cost common clip here is the trusty "jubilee" type), here  though, it is the grip type. Just use the pliers to pull the spring grip together and wriggle the grip up the pipe free from the spigot, then wriggle the pipe up the spigot.


Mechanic..... Northern Nick
Photos, & words by Si
19, Undo the water hose clips from the rocker box of both heads, two on the rear rocker box, one one the front.. Use a pair of pliers to squeeze the clips and pill towards to the frame, then using the pliers, pull the pipes up from the spigots.

Mechanic..... Northern Nick
Photos, & words by Si
20. Trace the two wires from the right hand side of the radiator, to the two bullet connectors which you should find under the two little plastic covers, just to the rear of the head stock. Pull them apart carefully and check for corrosion while you have them apart. These wires do the fan and the fan switch.

Under Construction!
Mechanic,
photos, & words: Si

21, undo the clip holding on the top rear of the water radiator. Then using a tyre lever against the down tube, and the top back, metal part of the radiator. 
Note: Do not the lever against the rear of the "grill" part of the radiator, this part can be easily get damaged!
 When pipe connection has pulled forwards and free of the pipe. Pull the top front of the radiator forwards and up, the radiator and the fan should come free, and be stored into a safe place.

Under Construction!
Mechanic,
photos, & words:  Si

22. Undo trace the rest of the wires which you can see, connect the engine to the rolling chassis. The main Earth form the Battery; the live from the solenoid; the generator wires  connection box, which have should be on a brace bar between the main tubes under where the saddle sits.

Under Construction!
Mechanic..... Northern Nick
Photos, & words by Si

23. Remove the lower clutch cable, by pulling the arm towards the front of the machine and pull the cable nipple through the slit on the end of the arm.

See clutch cables: external adjusters.
Mechanic..... Northern Nick
Photos, & words by Si

More to come!

Owner, not to be named (in shame of letting it get this bad... 10,000 without a service) 
Mechanics..... Northern Nick / Si
Photos, & words by Si.

Under Construction!

©